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                                <div id="anchor-navigation-ex-navbar"><i class="fa fa-navicon"></i><ul><li><span class="title-icon "></span><a href="#&#x5C5E;&#x6027;&#x7ED1;&#x5B9A;v-bind&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;"><b>1. </b>&#x5C5E;&#x6027;&#x7ED1;&#x5B9A;v-bind&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;</a></li><ul><li><span class="title-icon "></span><a href="#&#x5173;&#x4E8E;&#x6307;&#x4EE4;directive"><b>1.1. </b>&#x5173;&#x4E8E;&#x6307;&#x4EE4;(directive)</a></li><li><span class="title-icon "></span><a href="#&#x6DF1;&#x5165;v-bind&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;"><b>1.2. </b>&#x6DF1;&#x5165;v-bind&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;</a></li><li><span class="title-icon "></span><a href="#&#x5C0F;&#x7ED3;"><b>1.3. </b>&#x5C0F;&#x7ED3;</a></li></ul></ul></div><h1 id="&#x5C5E;&#x6027;&#x7ED1;&#x5B9A;v-bind&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;"><a name="&#x5C5E;&#x6027;&#x7ED1;&#x5B9A;v-bind&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;" class="anchor-navigation-ex-anchor" href="#&#x5C5E;&#x6027;&#x7ED1;&#x5B9A;v-bind&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;"><i class="fa fa-link" aria-hidden="true"></i></a>1. &#x5C5E;&#x6027;&#x7ED1;&#x5B9A;v-bind&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;</h1>
<h2 id="&#x5173;&#x4E8E;&#x6307;&#x4EE4;directive"><a name="&#x5173;&#x4E8E;&#x6307;&#x4EE4;directive" class="anchor-navigation-ex-anchor" href="#&#x5173;&#x4E8E;&#x6307;&#x4EE4;directive"><i class="fa fa-link" aria-hidden="true"></i></a>1.1. &#x5173;&#x4E8E;&#x6307;&#x4EE4;(directive)</h2>
<p>&#x5C5E;&#x6027;&#x7ED1;&#x5B9A;&#x3001;&#x4E8B;&#x4EF6;&#x7ED1;&#x5B9A;&#x548C;<code>v-modal</code>&#x5E95;&#x5C42;&#x90FD;&#x662F;&#x901A;&#x8FC7;&#x6307;&#x4EE4;(<code>directive</code>)&#x5B9E;&#x73B0;&#x7684;&#xFF0C;&#x90A3;&#x4E48;&#x4EC0;&#x4E48;&#x662F;&#x6307;&#x4EE4;&#x5462;&#xFF1F;&#x6211;&#x4EEC;&#x4E00;&#x8D77;&#x770B;&#x770B;<code>Directive</code>&#x7684;&#x5B9A;&#x4E49;&#x5427;&#x3002;</p>
<pre><code class="lang-ts"><span class="hljs-comment">//&#x6587;&#x4EF6; ./src/directives/index.ts</span>

<span class="hljs-keyword">export</span> <span class="hljs-keyword">interface</span> Directive&lt;T = Element&gt; {
  (ctx: DirectiveContext&lt;T&gt;): (() =&gt; <span class="hljs-built_in">void</span>) | <span class="hljs-built_in">void</span>
}
</code></pre>
<p>&#x6307;&#x4EE4;(<code>directive</code>)&#x5176;&#x5B9E;&#x5C31;&#x662F;&#x4E00;&#x4E2A;&#x63A5;&#x53D7;&#x53C2;&#x6570;&#x7C7B;&#x578B;&#x4E3A;<code>DirectiveContext</code>&#x5E76;&#x4E14;&#x8FD4;&#x56DE;cleanup
&#x51FD;&#x6570;&#x6216;&#x5565;&#x90FD;&#x4E0D;&#x8FD4;&#x56DE;&#x7684;&#x51FD;&#x6570;&#x3002;&#x90A3;&#x4E48;<code>DirectiveContext</code>&#x6709;&#x662F;&#x5982;&#x4F55;&#x7684;&#x5462;&#xFF1F;</p>
<pre><code class="lang-ts"><span class="hljs-comment">//&#x6587;&#x4EF6; ./src/directives/index.ts</span>

<span class="hljs-keyword">export</span> <span class="hljs-keyword">interface</span> DirectiveContext&lt;T = Element&gt; {
  el: T
  <span class="hljs-keyword">get</span>: (exp?: <span class="hljs-built_in">string</span>) =&gt; <span class="hljs-built_in">any</span> <span class="hljs-comment">// &#x83B7;&#x53D6;&#x8868;&#x8FBE;&#x5F0F;&#x5B57;&#x7B26;&#x4E32;&#x8FD0;&#x7B97;&#x540E;&#x7684;&#x7ED3;&#x679C;</span>
  effect: <span class="hljs-keyword">typeof</span> rawEffect <span class="hljs-comment">// &#x7528;&#x4E8E;&#x6DFB;&#x52A0;&#x526F;&#x4F5C;&#x7528;&#x51FD;&#x6570;</span>
  exp: <span class="hljs-built_in">string</span> <span class="hljs-comment">// &#x8868;&#x8FBE;&#x5F0F;&#x5B57;&#x7B26;&#x4E32;</span>
  arg?: <span class="hljs-built_in">string</span> <span class="hljs-comment">// v-bind:value&#x6216;:value&#x4E2D;&#x7684;value, v-on:click&#x6216;@click&#x4E2D;&#x7684;click</span>
  modifiers?: Record&lt;<span class="hljs-built_in">string</span>, <span class="hljs-literal">true</span>&gt; <span class="hljs-comment">// @click.prevent&#x4E2D;&#x7684;prevent</span>
  ctx: Context
}
</code></pre>
<h2 id="&#x6DF1;&#x5165;v-bind&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;"><a name="&#x6DF1;&#x5165;v-bind&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;" class="anchor-navigation-ex-anchor" href="#&#x6DF1;&#x5165;v-bind&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;"><i class="fa fa-link" aria-hidden="true"></i></a>1.2. &#x6DF1;&#x5165;v-bind&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;</h2>
<p><code>walk</code>&#x65B9;&#x6CD5;&#x5728;&#x89E3;&#x6790;&#x6A21;&#x677F;&#x65F6;&#x4F1A;&#x904D;&#x5386;&#x5143;&#x7D20;&#x7684;&#x7279;&#x6027;&#x96C6;&#x5408;<code>el.attributes</code>&#xFF0C;&#x5F53;&#x5C5E;&#x6027;&#x540D;&#x79F0;<code>name</code>&#x5339;&#x914D;<code>v-bind</code>&#x6216;<code>:</code>&#x65F6;&#xFF0C;&#x5219;&#x8C03;&#x7528;<code>processDirective(el, &apos;v-bind&apos;, value, ctx)</code>&#x5BF9;&#x5C5E;&#x6027;&#x540D;&#x79F0;&#x8FDB;&#x884C;&#x5904;&#x7406;&#x5E76;&#x8F6C;&#x53D1;&#x5230;&#x5BF9;&#x5E94;&#x7684;&#x6307;&#x4EE4;&#x51FD;&#x6570;&#x5E76;&#x6267;&#x884C;&#x3002;</p>
<pre><code class="lang-ts"><span class="hljs-comment">//&#x6587;&#x4EF6; ./src/walk.ts</span>

<span class="hljs-comment">// &#x4E3A;&#x4FBF;&#x4E8E;&#x9605;&#x8BFB;&#xFF0C;&#x6211;&#x5C06;&#x4E0E;v-bind&#x65E0;&#x5173;&#x7684;&#x4EE3;&#x7801;&#x90FD;&#x5220;&#x9664;&#x4E86;</span>
<span class="hljs-keyword">const</span> processDirective = (
  el: Element,
  raw, <span class="hljs-built_in">string</span>, <span class="hljs-comment">// &#x5C5E;&#x6027;&#x540D;&#x79F0;</span>
  exp: <span class="hljs-built_in">string</span>, <span class="hljs-comment">// &#x5C5E;&#x6027;&#x503C;&#xFF1A;&#x8868;&#x8FBE;&#x5F0F;&#x5B57;&#x7B26;&#x4E32;</span>
  ctx: Context
) =&gt; {
  <span class="hljs-keyword">let</span> dir: Directive
  <span class="hljs-keyword">let</span> arg: <span class="hljs-built_in">string</span> | <span class="hljs-literal">undefined</span>
  <span class="hljs-keyword">let</span> modifiers: Record&lt;<span class="hljs-built_in">string</span>, <span class="hljs-literal">true</span>&gt; | <span class="hljs-literal">undefined</span> <span class="hljs-comment">// v-bind&#x6709;&#x4E14;&#x4EC5;&#x6709;&#x4E00;&#x4E2A;modifier&#xFF0C;&#x90A3;&#x5C31;&#x662F;camel</span>

  <span class="hljs-keyword">if</span> (raw[<span class="hljs-number">0</span>] == <span class="hljs-string">&apos;:&apos;</span>) {
    dir = bind
    arg = raw.slice(<span class="hljs-number">1</span>)
  }
  <span class="hljs-keyword">else</span> {
    <span class="hljs-keyword">const</span> argIndex = raw.indexOf(<span class="hljs-string">&apos;:&apos;</span>)
    <span class="hljs-comment">// &#x7531;&#x4E8E;&#x6307;&#x4EE4;&#x5FC5;&#x987B;&#x4EE5;`v-`&#x5F00;&#x5934;&#xFF0C;&#x56E0;&#x6B64;dirName&#x5219;&#x662F;&#x4ECE;&#x7B2C;3&#x4E2A;&#x5B57;&#x7B26;&#x5F00;&#x59CB;&#x622A;&#x53D6;</span>
    <span class="hljs-keyword">const</span> dirName = argIndex &gt; <span class="hljs-number">0</span> ? raw.slice(<span class="hljs-number">2</span>, argIndex) : raw.slice(<span class="hljs-number">2</span>)
    <span class="hljs-comment">// &#x4F18;&#x5148;&#x83B7;&#x53D6;&#x5185;&#x7F6E;&#x6307;&#x4EE4;&#xFF0C;&#x82E5;&#x67E5;&#x627E;&#x5931;&#x8D25;&#x5219;&#x67E5;&#x627E;&#x5F53;&#x524D;&#x4E0A;&#x4E0B;&#x6587;&#x7684;&#x6307;&#x4EE4;</span>
    dir = builtInDirectives[dirName] || ctx.dirs[dirName]
    arg = argIndex &gt; <span class="hljs-number">0</span> ? raw.slice(argIndex) : <span class="hljs-literal">undefined</span>
  }

  <span class="hljs-keyword">if</span> (dir) {
    <span class="hljs-comment">// &#x7531;&#x4E8E;ref&#x4E0D;&#x662F;&#x7528;&#x4E8E;&#x8BBE;&#x7F6E;&#x5143;&#x7D20;&#x7684;&#x5C5E;&#x6027;&#xFF0C;&#x56E0;&#x6B64;&#x9700;&#x8981;&#x7279;&#x6B8A;&#x5904;&#x7406;</span>
    <span class="hljs-keyword">if</span> (dir === bind &amp;&amp; arg === <span class="hljs-string">&apos;ref&apos;</span>) dir = ref
    applyDirective(el, dir, exp, ctx, arg, modifiers)
  }
}
</code></pre>
<p>&#x5F53;<code>processDirective</code>&#x6839;&#x636E;&#x5C5E;&#x6027;&#x540D;&#x79F0;&#x5339;&#x914D;&#x76F8;&#x5E94;&#x7684;&#x6307;&#x4EE4;&#x548C;&#x62BD;&#x53D6;&#x5165;&#x53C2;&#x540E;&#xFF0C;&#x5C31;&#x4F1A;&#x8C03;&#x7528;<code>applyDirective</code>&#x6765;&#x901A;&#x8FC7;&#x5BF9;&#x5E94;&#x7684;&#x6307;&#x4EE4;&#x6267;&#x884C;&#x64CD;&#x4F5C;&#x3002;</p>
<pre><code class="lang-ts"><span class="hljs-comment">//&#x6587;&#x4EF6; ./src/walk.ts</span>

<span class="hljs-keyword">const</span> applyDirective = (
  el: Node,
  dir: Directive&lt;<span class="hljs-built_in">any</span>&gt;,
  exp: <span class="hljs-built_in">string</span>,
  ctx: Context,
  arg?: <span class="hljs-built_in">string</span>
  modifiers?: Record&lt;<span class="hljs-built_in">string</span>, <span class="hljs-literal">true</span>&gt;
) =&gt; {
  <span class="hljs-keyword">const</span> <span class="hljs-keyword">get</span> = (e = exp) =&gt; evaluate(ctx.scope, e, el)
  <span class="hljs-comment">// &#x6307;&#x4EE4;&#x6267;&#x884C;&#x540E;&#x53EF;&#x80FD;&#x4F1A;&#x8FD4;&#x56DE;cleanup&#x51FD;&#x6570;&#x7528;&#x4E8E;&#x6267;&#x884C;&#x8D44;&#x6E90;&#x91CA;&#x653E;&#x64CD;&#x4F5C;&#xFF0C;&#x6216;&#x4EC0;&#x4E48;&#x90FD;&#x4E0D;&#x8FD4;&#x56DE;</span>
  <span class="hljs-keyword">const</span> cleanup = dir({
    el,
    <span class="hljs-keyword">get</span>,
    effect: ctx.effect,
    ctx,
    exp,
    arg,
    modifiers
  })

  <span class="hljs-keyword">if</span> (cleanup) {
    <span class="hljs-comment">// &#x5C06;cleanup&#x51FD;&#x6570;&#x6DFB;&#x52A0;&#x5230;&#x5F53;&#x524D;&#x4E0A;&#x4E0B;&#x6587;&#xFF0C;&#x5F53;&#x4E0A;&#x4E0B;&#x6587;&#x9500;&#x6BC1;&#x65F6;&#x4F1A;&#x6267;&#x884C;&#x6307;&#x4EE4;&#x7684;&#x6E05;&#x7406;&#x5DE5;&#x4F5C;</span>
    ctx.cleanups.push(cleanup)
  }
}
</code></pre>
<p>&#x73B0;&#x5728;&#x6211;&#x4EEC;&#x7EC8;&#x4E8E;&#x8D70;&#x5230;&#x6307;&#x4EE4;<code>bind</code>&#x6267;&#x884C;&#x9636;&#x6BB5;&#x4E86;</p>
<pre><code class="lang-ts"><span class="hljs-comment">//&#x6587;&#x4EF6; ./src/directives/bind.ts</span>

<span class="hljs-comment">// &#x53EA;&#x80FD;&#x901A;&#x8FC7;&#x7279;&#x6027;&#x7684;&#x65B9;&#x5F0F;&#x8D4B;&#x503C;&#x7684;&#x5C5E;&#x6027;</span>
<span class="hljs-keyword">const</span> forceAttrRE = <span class="hljs-regexp">/^(spellcheck|draggable|form|list|type)$/</span>

<span class="hljs-keyword">export</span> <span class="hljs-keyword">const</span> bind: Directive&lt;Element &amp; { _class?: <span class="hljs-built_in">string</span> }&gt; =&gt; ({
  el,
  <span class="hljs-keyword">get</span>,
  effect,
  arg,
  modifiers
}) =&gt; {
  <span class="hljs-keyword">let</span> prevValue: <span class="hljs-built_in">any</span>
  <span class="hljs-keyword">if</span> (arg === <span class="hljs-string">&apos;class&apos;</span>) {
    el._class = el.className
  }

  effect(() =&gt; {
    <span class="hljs-keyword">let</span> value = <span class="hljs-keyword">get</span>()
    <span class="hljs-keyword">if</span> (arg) {
      <span class="hljs-comment">// &#x7528;&#x4E8E;&#x5904;&#x7406;v-bind:style=&quot;{color:&apos;#fff&apos;}&quot; &#x7684;&#x60C5;&#x51B5;</span>

      <span class="hljs-keyword">if</span> (modifiers?.camel) {
        arg = camelize(arg)
      }
      setProp(el, arg, value, prevValue)
    }
    <span class="hljs-keyword">else</span> {
      <span class="hljs-comment">// &#x7528;&#x4E8E;&#x5904;&#x7406;v-bind=&quot;{style:{color:&apos;#fff&apos;}, fontSize: &apos;10px&apos;}&quot; &#x7684;&#x60C5;&#x51B5;</span>

      <span class="hljs-keyword">for</span> (<span class="hljs-keyword">const</span> key <span class="hljs-keyword">in</span> value) {
        setProp(el, key, value[key], prevValue &amp;&amp; prevValue[key])
      }
      <span class="hljs-comment">// &#x5220;&#x9664;&#x539F;&#x89C6;&#x56FE;&#x5B58;&#x5728;&#xFF0C;&#x800C;&#x5F53;&#x524D;&#x6E32;&#x67D3;&#x7684;&#x65B0;&#x89C6;&#x56FE;&#x4E0D;&#x5B58;&#x5728;&#x7684;&#x5C5E;&#x6027;</span>
      <span class="hljs-keyword">for</span> (<span class="hljs-keyword">const</span> key <span class="hljs-keyword">in</span> prevValue) {
        <span class="hljs-keyword">if</span> (!value || !(key <span class="hljs-keyword">in</span> value)) {
          setProp(el, key, <span class="hljs-literal">null</span>)
        }
      }
    }
    prevValue = value
  })
}

<span class="hljs-keyword">const</span> setProp = (
  el: Element &amp; {_class?: <span class="hljs-built_in">string</span>},
  key: <span class="hljs-built_in">string</span>,
  value: <span class="hljs-built_in">any</span>,
  prevValue?: <span class="hljs-built_in">any</span>
) =&gt; {
  <span class="hljs-keyword">if</span> (key === <span class="hljs-string">&apos;class&apos;</span>) {
    el.setAttribute(
      <span class="hljs-string">&apos;class&apos;</span>,
      normalizeClass(el._class ? [el._class, value] : value) || <span class="hljs-string">&apos;&apos;</span>
    )
  }
  <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> (key === <span class="hljs-string">&apos;style&apos;</span>) {
    value = normalizeStyle(value)
    <span class="hljs-keyword">const</span> { style } = el as HTMLElement
    <span class="hljs-keyword">if</span> (!value) {
      <span class="hljs-comment">// &#x82E5;`:style=&quot;&quot;`&#x5219;&#x79FB;&#x9664;&#x5C5E;&#x6027;style</span>
      el.removeAttribute(<span class="hljs-string">&apos;style&apos;</span>)
    }
    <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> (isString(value)) {
      <span class="hljs-keyword">if</span> (value !== prevValue) style.cssText = value
    }
    <span class="hljs-keyword">else</span> {
      <span class="hljs-comment">// value&#x4E3A;&#x5BF9;&#x8C61;&#x7684;&#x573A;&#x666F;</span>
      <span class="hljs-keyword">for</span> (<span class="hljs-keyword">const</span> key <span class="hljs-keyword">in</span> value) {
        setStyle(style, key, value[key])
      }
      <span class="hljs-comment">// &#x5220;&#x9664;&#x539F;&#x89C6;&#x56FE;&#x5B58;&#x5728;&#xFF0C;&#x800C;&#x5F53;&#x524D;&#x6E32;&#x67D3;&#x7684;&#x65B0;&#x89C6;&#x56FE;&#x4E0D;&#x5B58;&#x5728;&#x7684;&#x6837;&#x5F0F;&#x5C5E;&#x6027;</span>
      <span class="hljs-keyword">if</span> (prevValue &amp;&amp; !isString(prevValue)) {
        <span class="hljs-keyword">for</span> (<span class="hljs-keyword">const</span> key <span class="hljs-keyword">in</span> prevValue) {
          <span class="hljs-keyword">if</span> (value[key] == <span class="hljs-literal">null</span>) {
            setStyle(style, key, <span class="hljs-string">&apos;&apos;</span>)
          }
        } 
      }
    }
  }
  <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> (
    !(el <span class="hljs-keyword">instanceof</span> SVGElement) &amp;&amp;
    key <span class="hljs-keyword">in</span> el &amp;&amp;
    !forceAttrRE.test(key)) {
      <span class="hljs-comment">// &#x8BBE;&#x7F6E;DOM&#x5C5E;&#x6027;(&#x5C5E;&#x6027;&#x7C7B;&#x578B;&#x53EF;&#x4EE5;&#x662F;&#x5BF9;&#x8C61;)</span>
      el[key] = value
      <span class="hljs-comment">// &#x7559;&#x7ED9;`v-modal`&#x4F7F;&#x7528;&#x7684;</span>
      <span class="hljs-keyword">if</span> (key === <span class="hljs-string">&apos;value&apos;</span>) {
        el._value = value
      }
  } <span class="hljs-keyword">else</span> {
    <span class="hljs-comment">// &#x8BBE;&#x7F6E;DOM&#x7279;&#x6027;(&#x7279;&#x6027;&#x503C;&#x4EC5;&#x80FD;&#x4E3A;&#x5B57;&#x7B26;&#x4E32;&#x7C7B;&#x578B;)</span>

    <span class="hljs-comment">/* &#x7531;&#x4E8E;`&lt;input v-modal type=&quot;checkbox&quot;&gt;`&#x5143;&#x7D20;&#x7684;&#x5C5E;&#x6027;`value`&#x4EC5;&#x80FD;&#x5B58;&#x50A8;&#x5B57;&#x7B26;&#x4E32;&#xFF0C;
     * &#x901A;&#x8FC7;`:true-value`&#x548C;`:false-value`&#x8BBE;&#x7F6E;&#x9009;&#x4E2D;&#x548C;&#x672A;&#x9009;&#x4E2D;&#x65F6;&#x5BF9;&#x5E94;&#x7684;&#x975E;&#x5B57;&#x7B26;&#x4E32;&#x7C7B;&#x578B;&#x7684;&#x503C;&#x3002;
     */</span>
    <span class="hljs-keyword">if</span> (key === <span class="hljs-string">&apos;true-value&apos;</span>) {
      ;(el as <span class="hljs-built_in">any</span>)._trueValue = value
    }
    <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> (key === <span class="hljs-string">&apos;false-value&apos;</span>) {
      ;(el as <span class="hljs-built_in">any</span>)._falseValue = value
    }
    <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> (value != <span class="hljs-literal">null</span>) {
      el.setAttribute(key, value)
    }
    <span class="hljs-keyword">else</span> {
      el.removeAttribute(key)
    }
  }
}

<span class="hljs-keyword">const</span> importantRE = <span class="hljs-regexp">/\s*!important/</span>

<span class="hljs-keyword">const</span> setStyle = (
  style: CSSStyleDeclaration,
  name: <span class="hljs-built_in">string</span>,
  val: <span class="hljs-built_in">string</span> | <span class="hljs-built_in">string</span>[]
) =&gt; {
  <span class="hljs-keyword">if</span> (isArray(val)) {
    val.forEach(v =&gt; setStyle(style, name, v))
  } 
  <span class="hljs-keyword">else</span> {
    <span class="hljs-keyword">if</span> (name.startsWith(<span class="hljs-string">&apos;--&apos;</span>)) {
      <span class="hljs-comment">// &#x81EA;&#x5B9A;&#x4E49;&#x5C5E;&#x6027;</span>
      style.setProperty(name, val)
    }
    <span class="hljs-keyword">else</span> {
      <span class="hljs-keyword">if</span> (importantRE.test(val)) {
        <span class="hljs-comment">// &#x5E26;`!important`&#x7684;&#x5C5E;&#x6027;</span>
        style.setProperty(
          hyphenate(name),
          val.replace(importantRE, <span class="hljs-string">&apos;&apos;</span>),
          <span class="hljs-string">&apos;important&apos;</span>
        )
      }
      <span class="hljs-keyword">else</span> {
        <span class="hljs-comment">// &#x666E;&#x901A;&#x5C5E;&#x6027;</span>
        style[name as <span class="hljs-built_in">any</span>] = val
      }
    }
  }
}
</code></pre>
<h2 id="&#x5C0F;&#x7ED3;"><a name="&#x5C0F;&#x7ED3;" class="anchor-navigation-ex-anchor" href="#&#x5C0F;&#x7ED3;"><i class="fa fa-link" aria-hidden="true"></i></a>1.3. &#x5C0F;&#x7ED3;</h2>
<p>&#x901A;&#x8FC7;&#x672C;&#x6587;&#x6211;&#x4EEC;&#x4EE5;&#x540E;&#x4E0D;&#x5355;&#x53EF;&#x4EE5;&#x4F7F;&#x7528;<code>v-bind:style</code>&#x7ED1;&#x5B9A;&#x5355;&#x4E00;&#x5C5E;&#x6027;&#xFF0C;&#x8FD8;&#x7528;&#x901A;&#x8FC7;<code>v-bind</code>&#x4E00;&#x6B21;&#x8FC7;&#x7ED1;&#x5B9A;&#x591A;&#x4E2A;&#x5C5E;&#x6027;&#xFF0C;&#x867D;&#x7136;&#x597D;&#x50CF;&#x4E0D;&#x592A;&#x5EFA;&#x8BAE;&#x8FD9;&#x6837;&#x505A;&gt;_&lt;</p>
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